JPS647582Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an actuating piece reciprocating device in a conductor connector used for connecting and holding electric wires such as a terminal block. The actuating piece for tilting is automatically returned to its original position with the return movement of the compression spring.

As a conductor connector for connecting and holding electric wires such as terminal blocks to conductive plates, in order to simplify the installation of the electric wires, the conductor is exposed from the end of the electric wire, and this conductor is inserted through the electric wire insertion hole, and the conductor is operated. Various devices have been devised in which a compression spring is pressed into contact with a conductive wire by a piece, and the conductive wire is brought into elastic contact with the conductive plate.

By the way, when releasing the pressure contact of the conductor by the pressure spring, it is very troublesome to manually move the actuating piece back and forth.

The object of the present invention is to provide a double-acting device that can automatically perform the double-acting motion of the actuating piece without necessarily providing a spring for double-acting. a bending plate having a conductor crimping part that stands up from a base that is held immovably and has a locking part at its end; supported as possible,
A contact guide piece is provided at the end thereof, and a hanging part that hangs downward is provided, and the contact guide piece is arranged along the back surface of the bending plate, and the crimping part of the bending plate is stabilized in a state in which it is in pressure contact with the conductor. (c) contacting the contact guide near the side of the electric wire insertion opening, and moving the hanging part of the bending plate around the locking part until the pressure contact plate is held in a stable position; a guide surface held in a floating position separated from the crimping part; (d) contacting the back surface of the hanging part of the pressure bonding plate, and its movement presses the pressure bonding plate and tilts the bending plate toward the conductive plate side; As the pressing plate moves due to the pressure of the actuating piece, the bending plate is tilted about the base as a fulcrum to crimp the conductive wire to the conductive plate at the crimp bent end, and the actuating piece When the pressure is released, the hanging portion of the pressure contact plate rapidly tilts to the floating position as the bending plate moves back and kicks up the actuating piece.

A first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

Referring to FIG. 1, reference numeral 1 denotes a plate-shaped terminal block made of synthetic resin, the bottom surface of which is connected to a rail x, and a large number of terminal blocks are successively assembled onto the rail x. The terminal block 1 is provided with two left and right storage gaps 3, 3 partitioned by a partition wall 2 on one side thereof.

On the upper surface of the peripheral wall 4 surrounding the storage gaps 3, 3 from below, there is mounted a conductive plate 5 having inclined portions 7, 7 on both sides of which are inclined upward in the expansion direction, and the horizontal portion 6 of the conductive plate 5 is mounted.
is fitted between the lower end of the partition wall 2 and the peripheral wall 4. Further, an upper wall 8 is provided above the storage gaps 3, 3.
are formed at the upper end of the peripheral wall 4 and the upper wall 8, respectively.
An insertion opening 9 communicating with the upper surface of the inclined portion 7 of the conductive plate 5 is formed between the outer ends of the conductive plate 5 .

Furthermore, between the upper end of the partition 2 and the inside of the upper wall 8, there is provided an opening 10 through which an operating piece 26, which will be described later, passes.

On the lower surface of the upper wall 8, there are formed a holding surface 14 perpendicular to the insertion opening 9, and a guide surface 15, which is the main part of the present invention and slopes slightly upward inside the holding surface 14.

A compression spring consisting of a bending plate 17 and a pressure contact plate 23 is stored in the storage gaps 3, 3. Here, the bending plate 17 is made of a plate spring material, and its base 1
8 is tightly fitted and immovably held between the conductive plate 5 and the lower end of the partition wall 2, and is bent upwardly from the base 18, and is in the position shown in FIG. 1 when not pressed as will be described later. The conductive plate 5 is maintained at a corresponding distance from the conductive plate 5. The bending plate 17 has a triangular conductor pressure welding part 19 bent near the base 18, and a U-shaped locking part 20 is provided on the outside thereof, and the curved end is coated and pressure welded. Section 21. In the present invention, the covering pressure contact portion 21 may be omitted by reducing the degree of protrusion of the curved end.

a pressure contact plate 23 disposed on the back of the bending plate 17;
has an upper end curved at approximately 90 degrees, and a linear contact guide piece 24 formed at the end thereof, and a hanging part 25 that hangs downward from the curved part and is slightly curved inward as a whole. By hooking the curved portion to the locking portion 20, the bending plate 1 is in the position shown in FIG.
It is in a suspended state along the back side of 7.

Furthermore, an actuating piece 26 is provided on the back of the pressure contact plate 23 along the partition wall 2 so as to be movable up and down, and a cam surface 28 on the lower surface of a pressing portion 27 formed at the lower end of the pressure member 26 that bulges outward is attached to the back surface of the pressure contact plate 23. Due to the restoring elasticity of the bending plate 17, the engaging jaw 29 at the upper end of the pressing part 27 comes into contact with the locking surface 30 formed on the side of the passage port 10 of the upper wall 8 and maintains its position. be done. An operating rod 31 is attached to the operating piece 26 and is attached to the partition wall 2.
Saw teeth 32 formed along the inner surface of the
The bending plate 1 is attached to the engaging teeth 33 formed on the upper end of the partition wall 2.
It can be latched and held in an appropriate position by the restoring elasticity of the lever 7, and by slightly tilting the operating rod 31 outward, the engagement is released and the lever can be moved up and down.

The holding of the electric wire a in the terminal block 1 will be explained.

As shown on the left in FIG. 1, the electric wire a is inserted through the insertion opening 9, and the conductive wire b is placed on the conductive plate 5 along the inclined portion 7.

Then, as shown in FIG. 2, the actuating piece 26 is lowered against the biasing force of the bending plate 17, and the cam surface 28 of the pressing part 27 presses the pressing plate 23, and as the amount of the lowering increases, Increase the amount of pressure. At this time, since the contact guide piece 24 is in contact with the guide surface 15, the pressure contact plate 23 moves forward while being prevented from tilting, and transmits the pressing force to the bending plate 17, thereby causing the bending plate 17 to bend. The plate 17 is tilted about the base 18 as a fulcrum.

As a result, the conductor pressure welding part 19 first comes into contact with the conductor b, presses it against the inclined part 12, electrically connects the conductor b and the conductive plate 10, and uses the tip of the conductor pressure welding part 19 as a fulcrum to make a U The shape is bent, and the covering pressure contact portion 21 comes into contact with the synthetic resin covering c in a biting manner. Just before the end of the pinching operation by the bending plate 17, the contact guide piece 24 comes into contact with the holding surface 14 on the lower surface of the upper wall 8, and rapidly tilts the hanging part 25 to the position shown in FIG. death,
It reaches a stable position in the state shown in Figure 2.

In the contact state, the actuating piece 26 is immovably locked by the engagement between the saw teeth 32 on the inner surface of the actuating rod 31 and the partition wall 2a, thereby ensuring that the actuating piece 26 is held in place.

In the embodiment, when the operating rod 31 is tilted to release the engagement with the partition wall 2a, the contact guide piece 24 of the press plate 23 comes into contact with the guide surface 15 again due to the return movement of the bending plate 17. Therefore, the hanging part 25 in contact with the pressing part 27 rapidly tilts, kicking up the actuating plate 15a and returning it to the state shown in FIG.

FIG. 3 shows a second embodiment of the present invention, in which only a guide surface 15a is formed on the lower surface of the upper wall 8. Also, the bending plates 17a in the storage gaps 3, 3
A triangular conductor pressure contact portion 19a is formed by bending, and a connecting pin is provided at the end thereof, which serves as a locking portion 20a.

The locking portion 20 is provided on the back of the bending plate 17a.
The pressure contact plate 23a is rotatably supported on the connection pin a.
are placed. The pressure contact plate 23a has an upper end bent outward at approximately 90 degrees, and includes a linear contact guide piece 24a formed at the end and a hanging part 25a hanging downward from the bent part. Nari, 3rd
The guide piece 24a is brought into contact with the guide surface 15a at the right position in the figure, and the contact between the guide piece 24a and the guide surface 15a is released with the conducting wire b at the left position in FIG. and the locking portion 20a
The hanging portion 25a is tilted inwardly around the center, and its lower end contacts the bending plate 17a, so that the tilted state is stably maintained. At this time, the lower end of the hanging portion 25a comes into contact with the vicinity of the bent portion of the triangular conductor pressure contact portion 19a, thereby forming the pressure contact portion 19a into a closed triangular shape and preventing its bending.
Holds the conductor firmly.

In the first embodiment as well, the lower end of the hanging portion 25a may be brought into contact with the vicinity of the bent portion of the triangular conducting wire pressure contact portion 19 in order to hold the pressure contact portion 19 more stably.

When the pressure by the actuation piece 26 is released, the pressure contact plate 23 is restored by the restoring elasticity of the bending plate 17a
a moves back, and at this time the guide piece 24a and the guide surface 15
a again, and as a result, the hanging part 25a rapidly tilts to the floating position shown on the right in FIG. 3, and kicks up the actuating piece 26 that is in contact with its back surface.

As clarified by the description of the above embodiments, the present invention provides a conductor crimping portion 1 for clamping the conductor c.
The locking portion 20 of the bending plate 17 formed by the
A contact guide piece 24 is provided at the end of the press plate 23 which is rotatably supported by the bending plate, and the press plate 23 is moved back with the restoring elasticity of the bending plate. Since the hanging part 25 of the press plate 23 is brought into contact with the press plate 23 again and the actuating piece is kicked up by rapidly floating, the actuating piece can be automatically moved back without necessarily using a spring for back movement. ,
This has excellent effects such as ease of handling of the wire holding device.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention; FIG. 1 is a front view of a terminal block 1, FIG. 2 is a front view of the same side in an operating state, and FIG. 3 is a front view of a second embodiment. 1; Terminal block, 2; Partition wall, 3; Storage gap, 5; Conductive plate, 15; Guide surface, 17; Flexible plate, 23; Pressure contact plate, 24; Contact guide piece, operating piece; 26, a; Electric wire, b; Leading wire.

Claims (1)

[Scope of Claim for Utility Model Registration] (a) A conductor crimping part made of a plate spring material for clamping the conductor is formed standing up from a base which is held so as not to tilt, and a locking part is provided at the end thereof. a bending plate that is rotatably supported by a locking portion of the bending plate;
A contact guide piece is provided at the end thereof, and a hanging part that hangs downward is provided, and the contact guide piece is arranged along the back surface of the bending plate, and the crimping part of the bending plate is stabilized in a state in which it is in pressure contact with the conductor. (c) contacting the contact guide near the side of the electric wire insertion opening, and moving the hanging part of the bending plate around the locking part until the pressure contact plate is held in a stable position; a guide surface held in a floating position separated from the crimping part; (d) contacting the back surface of the hanging part of the pressure bonding plate, and its movement presses the pressure bonding plate and tilts the bending plate toward the conductive plate side; As the pressing plate moves due to the pressure of the actuating piece, the bending plate is tilted about the base as a fulcrum to crimp the conductive wire to the conductive plate at the crimp bent end, and the actuating piece 1. An actuating piece return movement device for a conductive wire connector, characterized in that when the pressure is released, the hanging portion of the pressure contact plate kicks up the actuating piece as the bending plate moves back.